| Full text | |
| Author(s): |
Gerosa-Neto, Jose
[1]
;
Rossi, Fabricio E.
[1]
;
Campos, Eduardo Z.
[1]
;
Antunes, Barbara M. M.
[1]
;
Cholewa, Jason M.
[2]
;
Lira, Fabio S.
[1]
Total Authors: 6
|
| Affiliation: | [1] Univ Estadual Paulista UNESP, Dept Phys Educ, Exercise & Immunometab Res Grp, Presidente Prudente, SP - Brazil
[2] Coastal Carolina Univ, Dept Kinesiol Recreat & Sport Studies, Conway, SC - USA
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | JOURNAL OF STRENGTH AND CONDITIONING RESEARCH; v. 30, n. 6, p. 1570-1576, JUN 2016. |
| Web of Science Citations: | 3 |
| Abstract | |
The purpose of this study was to investigate the influence of short and moderate recovery intervals during heavy strength exercise on performance, inflammatory, and metabolic responses in recreational weightlifters. Eight healthy subjects (age = 24.6 +/- 4.1 years) performed 2 randomized sequences with different rest intervals: short = 90% of 1RM and 30 seconds rest allowed between sets; moderate = 90% of 1RM and 90 seconds rest allowed between sets. All sequences of exercises were performed over 4 sets until movement failure in the squat and bench press exercises, respectively. Glucose, TNF-alpha, IL-6, IL-10, IL-10/TNF-alpha ratio, and nonester fatty acid concentrations were assessed at the baseline, immediately postexercise, post-15 and post-30 minutes. We observed a statistically significant decrease after 30 seconds on maximum number of repetitions (p = 0.003) and total weight lifted (p = 0.006) after the bench press, and there was a marginal decrease in the squat (p = 0.055). The glucose concentrations showed a significant increase post-15 minutes in the 30-second condition (pre-exercise = 86.1 +/- 9.1, immediately = 85.3 +/- 8.2, post-15 = 97.0 +/- 9.0, post-30 = 87.1 +/- 5.3 mg/dl; p = 0.015); on the other hand, IL-10 increased post-30 minutes in the 90-second condition (pre-exercise = 18.2 +/- 12.7, immediately = 16.4 +/- 10.7, post-15 = 16.8 +/- 12.2, post-30 = 35.0 +/- 13.1 pg/ml; p < 0.001). In addition, the 90-second condition showed anti-inflammatory effects (as indicated by IL-10/TNF-alpha ratio: pre-exercise = 1.08 +/- 1.32, immediately = 1.23 +/- 1.20, post-15 = 1.15 +/- 1.14, post-30 = 2.48 +/- 2.07; p = 0.020) compared with the 30-second condition (pre-exercise = 1.30 +/- 2.04, immediately = 0.99 +/- 1.27, post-15 = 1.23 +/- 1.82, post-30 = 1.28 +/- 1.28; p = 0.635). Thus, we concluded that a moderate interval of recovery (90 seconds) during heavy strength exercise allowed higher workload, IL-10 levels, and IL-10/TNF-alpha ratio in recreational weightlifters. (AU) | |
| FAPESP's process: | 13/25310-2 - Evaluation of immune-metabolic blood cells in obese subjects: role of physical exercise and PPAR-gamma |
| Grantee: | Fábio Santos de Lira |
| Support Opportunities: | Regular Research Grants |